Well my trusty 5 year old Lenovo W540 started playing up again yesterday - not shutting down, not starting up properly, bit of blue screen, sometimes no screen at all! I think a new laptop is on the cards as I can't afford to not have a working machine for my drawings - it is my living after all. I'm not going to get rid of the W540 - once I have a new machine i'll do a clean reinstall of Win 10 and hand it down to my student daughter who can use it for college work. I run 2 external screens plus the one on the laptop. I'm tempted by a Lenovo P52 due to the high spec you get for the money - i7-8750H 6 core, 512 SSD, 16gb RAM, Quadro P1000 with 3 year manufacturers warranty for £1,200. According to the requirements for TurboCad it should absolutely fly through what I'm throwing at it. For whatever reason my W540 struggles, especially when snapping to points - but then again perhaps I'm asking too much when working on a 70mb drawing incorporating 3 X-ref files (each about 30mb) with 80 paper spaces and over 200 layers. No 3D or rendering though. I've seen several negative comments re the reliability of the Lenovo P series and some have suggested an HP Z Book instead but with the same spec and warranty as the P52 it'll cost quite a bit more. Obviously people generally comment more on forums with negative aspects rather than positive ones as they're looking for a solution to a problem but I'm sure there are people out there with Lenovo P Series laptops who are happy with their performance and reliability!